Allen-Bradley 854K-BT10C Control Tower Light Assembly

Allen-Bradley 854K-BT10C is the Control Tower 854K base assembly designed for 10 cm M20-threaded tube mounting, featuring a black housing and cap included. This base module provides a 10 cm M20 threaded tube base and cable entry via M20, enabling clean wiring to the matching 854K light module and forming a compact foundation for a tower indicator. Manufactured in the Czech Republic, Rockwell Automation lists the part as an active base component in Bulletin 854K for control-tower stack lights, to be paired with 854K light modules to create a complete tower signal. Typical applications include visual status signaling on manufacturing lines, packaging cells, and quality-control workstations where operators need rapid, at-a-glance indication of equipment state. With its standard 100 mm base and integrated cap, the 854K-BT10C delivers a robust mounting solution that blends with other 854K components and supports reliable cable routing through the M20 entry.